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Finding the Fourth Proportional to 78,453.77, 108,265.91 and 44,468.81

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Solution

The fourth proportional to 78,453.77, 108,265.91 and 44,468.81 is: 61,366.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,453.77 : 108,265.91 = 44,468.81 : x
  2. Step 2: Convert to fraction form
    78,453.77/108,265.91 = 44,468.81/x
  3. Step 3: Cross multiply
    78,453.77x = 108,265.91 × 44,468.81
  4. Step 4: Simplify right side
    78,453.77x = 4,814,455,417.59
  5. Step 5: Solve for x
    x = 4,814,455,417.59/78,453.77
  6. Step 6: Final answer
    x = 61,366.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.